LA agrees with her.

Since moving to Los Angeles a little over a year ago, Posh has apparently gone from skinny and sulky to healthy and happy -- at least according to her!

Victoria tells the Sun that she's taken to running four miles a day, seven days a week, eating healthier, and even smiling!

On her new fitness routine, Victoria says:
"I feel energized and healty. There are really nice gyms here and I just enjoy it. I need that self-discipline to get up in the morning, drop the kids off at school then go to the gym."

And despite looking as slender as ever, Victoria insists she's eating more.
"Yes, I am eating more. I think you do eat more when you’re working out. And you want to eat healthily, so it’s good all round."

As for shopping:
"I don't really go shopping any more — apart from the flea market I go to every Sunday. You can get some amazing vintage stuff there."

Ok, we might believe the working out more and eating more stuff, but that she doesn't go shopping? Sorry, I just don't think I've seen Victoria ever wearing "vintage'!